Nasal cannula



FIG. 1 is front view of a nasal cannula;

FIG. 2 is a rear view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view 1 thereof; and,

FIG. 8 is a perspective view 2 thereof.

CLAIM The ornamental design for a nasal cannula, as shown and described.